/2 THE BIOLOGICAL REVIEW. 



habitat and range as follows : " In bogs and wet places of 

 central Europe, from southern Scandinavia and western France 

 to the Russian frontier. In Britain, only in the eastern 

 counties." 



C. W. Armstrong. 



THREE RARE GRASSES. 



Leersia virginica Willd. P.L. 12078. Culm slender, from a 

 creeping root-stock. I found it decumbent through herbage in 

 low wet grounds, in Castle Frank Valley on September 14, 1892. 



Oryzopsis canadensis Torr. P.L. 12 166. Culm cespitose; 

 naked above, leaves involute. I found it in open sandy soil, 

 east of Victoria Park on May 2, 1892. 8' and not more than 

 12' high. 



Eragrostis major Host. P.L. 11966. Culms densely tufted, 

 geniculate ; panicle, large, of flattened spiklets. I was for- 

 tunate enough to find an isolated patch of this beautiful species, 

 in a meadow at the foot of the west bank of the Don Valley on 

 September 1, 1891. I have watched it ever since, and it is 

 gradually crowding the Poa pratense L. out around it, notwith- 

 standing the Poa has the start of it in the spring. 



W. H. Blashford. 



PTEROSPORA ANDROMEDEA NUTT. P.L. 6641. 



On August 29, 1891, I was walking with some friends through 

 Scarboro Heights, and we came upon one solitary specimen of 

 this plant in a small ravine just east of Victoria Park, in a grove 

 of pine (Pinus strobus L.). It was in fruit and had over thirty 

 seed capsules on it. Height, 20^'. 



On July 17, 1892, I found three specimens on the high, rocky 

 ridge, behind the town of Grimsby, on the south shore of Lake 

 Ontario. Two of them were growing together, exactly in the 

 centre of a triangle, formed by a tree each of Pinus strobus L., 



